Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (11): 102-103.DOI: 10.3778/j.issn.1002-8331.2009.11.031

• 网络、通信、安全 • Previous Articles     Next Articles

Image scrambling with wavelet transform and chaos map

QIU Bing-cheng1,YAO Yang-xin2,CHEN Yin-dong3   

  1. 1.Guangdong Polytechnic Institute，Guangzhou 510091，China
    2.South China University of Technology，Guangzhou 510640，China
    3.Fudan University，Shanghai 200433，China
  • Received:2008-02-25 Revised:2008-05-15 Online:2009-04-11 Published:2009-04-11
  • Contact: QIU Bing-cheng

用小波变换和混沌映射实现图像置乱

邱炳城1,姚仰新2,陈银冬3   

  1. 1.广东理工职业学院，广州 510091
    2.华南理工大学，广州 510640
    3.复旦大学，上海 200433
  • 通讯作者: 邱炳城

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Abstract: An image scrambling algorithm based on wavelet transform and chaos map is proposed.Firstly，the image is wavelet transformed，and then the wavelet-matrix is scrambled.Finally，the scrambled wavelet-matrix is inv-wavelet transformed to generate the encrypting image.The simulate results are satisfied.

摘要： 提出了一种基于小波变换和混沌映射的数字图像置乱加密算法。先对数字图像进行小波分解，再对变换后的小波系数进行混沌置乱，最后对置乱后的系数矩阵进行逆小波变换得到加密图像。实验表明，该算法具有令人满意的安全性和置乱效果。

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